Patents by Inventor Florence Mehlmann

Florence Mehlmann has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20150024146
    Abstract: The invention relates to the use of a melt-in-place acrylic binder that is applied to a substrate in the form of a powder, followed by a fusing together of the binder powder by heat or radiation. Particulate filler is present either on the substrate, mixed with the binder powder, or admixed into the binder powder prior to fusion. The fused binder helps adhere the particulate fillers to the substrate, and may or may not cover the particulate filler.
    Type: Application
    Filed: September 30, 2014
    Publication date: January 22, 2015
    Inventors: Florence Mehlmann, Paul D. Fellenger, Michael T. Burchill, Thomas F. Roland
  • Patent number: 8835544
    Abstract: The invention relates to an acrylic polymer, modified with one or more hard core core/shell impact modifier, which is blended with one or more low melt viscosity polymer. The alloy formed by the blend has good impact properties, good melt processability, high modulus, high surface hardness, and excellent resistance to chemical attack.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: September 16, 2014
    Assignee: Arkema France
    Inventor: Florence Mehlmann
  • Publication number: 20140147644
    Abstract: The invention relates to a multi-layer polymer structure having a polyolefin-based layer, an acrylic-based or other polar polymer layer, and a tie-layer between and adjacent to the polyolefin and acrylic-based layers. Each layer could contain multiple sub-layers. The invention specifically relates to the composition of the tie-layer used to bond the polyolefin- and the polar polymer layers together. The multilayer structure can contain more than three layers, with polar polymer layers on each side of the polyolefin-based layer, and can be made by any method known to the art. The multilayer structure exhibits excellent structural integrity, excellent surface appearance, high impact strength, high scratch resistance, and excellent resistance to UV rays.
    Type: Application
    Filed: August 15, 2012
    Publication date: May 29, 2014
    Applicant: Arkema France
    Inventors: Charles C. Crabb, Steven B. Lacock, Thomas H. Richards, Florence Mehlmann
  • Patent number: 8524826
    Abstract: The invention relates to acrylic alloy compositions that are transparent and have excellent chemical and impact resistance. The acrylic alloy is especially useful in bio-pharmaceutical and medical applications in which the composition needs a resistance to isopropyl alcohol, lipids and impact. The acrylic alloy containing is a melt blend of a high molecular weight acrylic copolymer, polyvinylidene fluoride, optional impact modifier and other additives.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: September 3, 2013
    Assignee: Arkema France
    Inventors: Leslie A. Cohen, Florence Mehlmann
  • Publication number: 20120328808
    Abstract: The invention relates to a multi-layer structure in which one or more layers contain an acrylic polymer, and one or more layers contain biopolymers. The acrylic polymer and biopolymer could be in different layers of the structure, or in the same layer ofteh structure. The combination of acrylic polymer and biopolymer in the same multi-layer structure provides improved properties, such as improved adhesion, improved mechanical properties, and improvements in the ease of manufacturing. An inner layer containing a biopolymer gains significantly improved UV resistance, abrasion resistance, and surface appearance, when covered with an outer acrylic layer. The multi-layer structure may be in the form of a sheet, a film, a tube or pipe, or a profile, and could used by itself or as a cap-layer over another substrate.
    Type: Application
    Filed: September 7, 2012
    Publication date: December 27, 2012
    Applicant: Arkema France
    Inventors: Florence Mehlmann, Robert J. Barsotti, Charles C. Crabb, Thomas H. Richards, Steven B. Lacock, Mark A. Aubart
  • Publication number: 20120164364
    Abstract: The invention relates to an acrylic polymer, modified with one or more hard core core/shell impact modifier, which is blended with one or more low melt viscosity polymer. The alloy formed by the blend has good impact properties, good melt processability, high modulus, high surface hardness, and excellent resistance to chemical attack.
    Type: Application
    Filed: November 5, 2010
    Publication date: June 28, 2012
    Applicant: Arkema France
    Inventor: Florence Mehlmann
  • Publication number: 20110226313
    Abstract: The invention relates to an acrylic sheet having a high Tg, and especially for the use of the high Tg acrylic sheet as a front sheet of a photovoltaic module. The high Tg acrylic polymer is a copolymer of polymethylmethacrylate and one or more higher Tg monomers.
    Type: Application
    Filed: November 17, 2009
    Publication date: September 22, 2011
    Inventors: Amy A. Lefebvre, Jiaxin Jason Ge, Michael T. Burchill, Florence Mehlmann
  • Publication number: 20110081553
    Abstract: The invention relates to the use of a melt-in-place acrylic binder that is applied to a substrate in the form of a powder, followed by a fusing together of the binder powder by heat or radiation. Particulate filler is present either on the substrate, mixed with the binder powder, or admixed into the binder powder prior to fusion. The fused binder helps adhere the particulate fillers to the substrate, and may or may not cover the particulate filler.
    Type: Application
    Filed: October 4, 2010
    Publication date: April 7, 2011
    Applicant: Arkema France
    Inventors: Florence MEHLMANN, Paul D. Fellenger, Michael T. Burchill, Thomas F. Roland
  • Publication number: 20100324218
    Abstract: The invention relates to acrylic alloy compositions that are transparent and have excellent chemical and impact resistance. The acrylic alloy is especially useful in bio-pharmaceutical and medical applications in which the composition needs a resistance to isopropyl alcohol, lipids and impact. The acrylic alloy containing is a melt blend of a high molecular weight acrylic copolymer, polyvinylidene fluoride, optional impact modifier and other additives.
    Type: Application
    Filed: February 4, 2009
    Publication date: December 23, 2010
    Inventors: Leslie A. Cohen, Florence Mehlmann
  • Patent number: 7811659
    Abstract: The invention relates to a high optical purity toughened copolymer film or coating. The copolymer is a graft or block copolymer, preferably acrylic, preferably produced by a controlled radical polymerization having an extremely low degree of particulate contamination and excellent optical properties. The film or coating is preferably formed by solvent-casting on a temporary substrate or solvent-coating on a permanent substrate.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: October 12, 2010
    Assignee: Arkema France
    Inventors: Brian Edgecombe, Florence Mehlmann, Ryan Dirkx, Manuel Garcia
  • Publication number: 20070178325
    Abstract: The invention relates to a high optical purity toughened copolymer film or coating. The copolymer is a graft or block copolymer, preferably acrylic, preferably produced by a controlled radical polymerization having an extremely low degree of particulate contamination and excellent optical properties. The film or coating is preferably formed by solvent-casting on a temporary substrate or solvent-coating on a permanent substrate.
    Type: Application
    Filed: December 14, 2006
    Publication date: August 2, 2007
    Inventors: Brian Edgecombe, Florence Mehlmann, Ryan Dirkx, Manuel Garcia